A Numerical Simulation Study of the Migration Law of Water-Sand Two-Phase Flow in Broken Rock Mass. (21st January 2018)

• Record Type: Journal Article
• Authors: Du, Feng; Jiang, Guanghui; Chen, Zhanqing
• Other Names: Chen Zhongwei Academic Editor.
• Is Part Of: Geofluids. Volume 2018(2018)
• Publication Date: 2018-01-21
• Subjects: Hydrogeology -- Periodicals; Sedimentary basins -- Periodicals; Fluids -- Migration -- Periodicals; Groundwater flow -- Periodicals; Geothermal resources -- Periodicals; Fluid dynamics -- Periodicals; Earth -- Crust -- Periodicals; 551.49
• DOI: 10.1155/2018/6418476
• Languages: English
• ISSNs: 1468-8115

Abstract

Abstract : When the upper parts of coal resources are exploited, the mining overburden separated strata may easily connect with the upper unconsolidated aquifers. This may cause the water-sand two-phase fluids in the aquifers to flow underground through the falling broken rock mass. It has been found that it is difficult to eliminate sand after it has entered a mine, which tends to severely restrict the restorations of mines and causes significant economic losses. This paper studied a seepage system dynamic model of water-sand two-phase fluids in broken rock mass based on related two-phase flow theories. In addition, using FORTRAN language, it established a numerical calculation program to study the migration law of water-sand two-phase fluids flowing into broken rock mass and determined the main influencing factors on the seepage characteristic parameters of water-sand two-phase fluids in broken rock mass and the amounts of sand losses.